Mailing List flyrotary@lancaironline.net Message #14125
From: Tom <tomtugan@yahoo.com>
Subject: Re: [FlyRotary] Re: George Graham glide update
Date: Sun, 19 Dec 2004 18:10:25 -0800 (PST)
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
I wonder if a free-spinning prop on a broken tranny would not have the same
drag as a spinning prop which is turning the motor?    I'd be inclined to say
they would differ. Tom


--- Bob White <bob@bob-white.com> wrote:

Somenone else recently reported a spinning prop having negligable effect
on engine out glide.  (Dave Leonard maybe?).  I'm thinking that the
biggest effect occurs with a C/S prop that goes to flat pitch when it
looses oil pressure.  I think twins often use feathering props for that
reason.

Bob White

On Sun, 19 Dec 2004 15:41:53 -0500
"Tracy Crook" <lors01@msn.com> wrote:

 He glided about 20 miles from an altitude of only 5000 ft with the prop
freewheeling!   I've heard several times that a freewheeling prop (no
engine drag on it) would generate lots of drag.  Another sacred cow shot
down : )
> > Tracy -- http://www.bob-white.com
N93BD - Rotary Powered BD-4 (soon)

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